Protecting device for show windows



M. A. SKALL. PROTECTING DEVICE FOR SHOW WINDOWS.

APPLICATION FILED IULY25. I921.

l atehted July 25, 1922.

. III

()FFICE.

MAX A. SKALL, on NEW YORK, N. Y.

PROTECTING DEVICE FOR. SHOW WINDOWS.

Application filed July 25,

To all whom it may concern.-

Be it known that I, MAX A. SKALL, a citizen of the United States, and. residing in the city, county, and State of New York, have invented certain new and useful Improve- -ments in Protecting Devices for Show Wintion.

dows, of which the following is a specifica- This invention relates to improvements in protecting devices of show windows against theft. It is the object of the invention to make the goods displayed in a show window inaccessible to a person who throwsa stone or similar missile into the window and breaks same. It is also an object of this invention consists of a novel combination of "parts and mechanical devices hereinafter fully described in these specifications and illustrated by the accompanying drawings made a part thereof and finally pointed out in the claims.

In the drawings,

Fig. I is an isometric view ofa show window as seen from the interior of a building, and provided with my safety device.

Fig. II is a sectional elevation showing a detail of the support of the screen-frame on the shield by means of finger brackets.

Fig. III is a front elevation of Fig. II.

Fig. IV is a section near a vertical channel 2 showing the arrangements of spring locks on the same.

Fig. Visa detail sectional elevation showing one of the buffers on base 9.

Fig. VI is a rear elevation of a spring lock from which pin 20 is removed.

Fig. VII is an elevation of a locking pin 20.

Referring to Fig. I of the drawing, 1 is a pane of plate glass forming the front face of a show window, which may be framed in any suitable manner customary in show window construction. Near the vertical interior edges of the window are placed channel shaped members, 2, preferably of sheet metal; the legs of these channels extend parallel to the glass plate and the upper portion of each interior leg is cut away for a suitable distance from the t p of the chan- Specification of Letters Patent.

Patented July 25, 1922.

1921. Serial No. 487,280.

nel to the point 2*. The lower ends of channels 2 rest on plate 9 which forms the base plate of the window on which the displayed goods are placed. Hinges 10 are fastened to the channels 2 near their lower ends and hold pins 11 to which a frame consisting of bars 12, 13 and 14 is fastened. This frame surrounds a second glass plate 3 forming a shield. The horizontal bar 12 extends on either end beyond the vertical bars 13 and its overhanging ends 15 are guided in curved brackets 6, which are also suitably supported on channels 2.

The upper horizontal rod 12 of this shield carries three finger brackets 7 which extend beyond the front face of 12 and support near their forward ends, a' second frame consisting of bars 16, 17 and 18 which surrounds a'third pane of glass or a screen 8. This frame is guided in the channels 2 in which the bars 18 are slidably arranged. In normal position bars 16 rest in slight recesses of the finger brackets, 7 the upper horizontal edge of which is preferably made sharp as per Fig. III. On the rear faces of channels 2 spring locks 19 and 22 are provided as illustrated by Fig. IV in such a position that the pins 20 prevent the lifting of glass plate 8 when it has reached a position partly lowered or its lowest position in channel 2. On the base plate 9 of the show window below the lower edge of bars 16 a number of spring buffers are mounted in the manner shown in Fig. V.

This device operates in the following manner: To obtain access to the jewelry or other Wares displayed in the window by means of a missile thrown, the latter must enter the lower part of the window to bring the wares within reach, this would be below the bars 16. A missile so entering the window after breaking plate 1 will strike shield 3 and the force of the impact will swing this shield sufiiciently on the pins 11 of hinges 10 that the front ends of fingers 7 release the lower edges of 16 and. therewith plate 8 This plate will slide down guided by channels 2 until its frame bar 16 strikes the buffers 21 and plate 8 closes thereby immediately the opening in plate 1 preventing access to the merchandise.

It is immaterial whether shield 3 is broken by the missile or not; should it be broken, the process should be as described above,

should however the missile become lodged between plate 1 and shield 3 and plate 8 be prevented from reaching its lowest position, then shield 3 will still prevent access through the opening made in plate 1. The spring locks 22 prevent the-lifting ofplate 8 when it is partly down, and 19 when in lowest position.

The pins 20 of the spring lock are provided with a key projection 5 which normally slides in a guide slot 2 1 of the spring locks 19 or 22 and may be pulled out of the slot and rotatedso that the front end of the pin is disengaged from the bars 18 of the screen-frame to permit the lifting of this frame. These pins when pressed by the springs 23 against bars 18 serve also as a brake preventing a too rapid falling of this frame.

The buffers 21 prevent the breaking of plate 8 by the impact of falling, although this plate is preferably made of wireglass or it may be replaced by a suitable screen. To insert the frame of plate 8 into the channels 2 their inner legs are cut away to the point 2* as shown.

This device is very simple in construction, it has a very limited number of movable parts, and is easily attached to any show window without structural alterations. Another advantage is that it is operated by the missile itself and gravity, without the aid of any other force as electricity, etc.

Having thus described my invention, what I claim. as new and desire to secure by Letters Patent is 1. In a device of the kind described a glass plate forming the front of ashow window, a movable frame holding a second plate or screen slidably mounted parallel to said first plate, and a vertical glass shield adapted to rotate about its lower horizontal edge and forming means to support said frame.

2. In a device of the kind described the combination with a stationary pane of glass forming a show window, of a window base, a glass shield normally parallel to said pane rotatably mounted about an axis adjacent to said base and a plate or screen adapted to slide parallel to said pane and means on said shield to support said screen in elevated position.

3. In a device of the kind described apane of glass forming the front of a show window, a pivoted shield normally parallel to said pane, a screen or plate adapted to slide parallel to said pane, and means to support said screen above said shield said means being adapted to release said screen by a rotary movement of said shield.

4. In a device of the kind described, the

combination with a pane of glass forming the front of a show window of a rotatable shield mounted normally parallel thereto on the inside thereof, a screen or plate slidably mounted parallel to said pane and normally supported by said shield and resilient friction means adapted to retard said screen during its descent.

5. In a device of the kind described, the combination with a pane of glass forming the front of a show window of a swinging shield normally parallel to said pane and adapted to support a frame surrounding a screen or plate and slidably mounted parallel to said pane and resilient means adapted to retard the fall. of said frame and to prevent the lifting of said frame from its lowered position.

MAX A. SKALL. 

